Disk grain-drill.



No. 795,276. PATBNTED JULY 25, 1905.

c. L. FOWLE.

DISK GRAIN DRILL.

APPLICATION FILED APR. 8. 1905.

' asnnmssanm 1 W'itgesses:

' Invent-o" By w i UNITED STATES PATENT OFFICE.

DISK GRAIN-DRILL.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed April 8, 1905. Serial No. 254,464.-

To all whom it may concern:

Be it known that LOHARLns L.FOWLE, a citizen of the United States,residing in the city of Dowagiac and county of Cass, State of Michigan,have invented certain new and useful Improvements in Disk Grain-Drills,of which the following is a specification.

This invention relates to improvements in disk grain-drills, moreparticularly to improvements in what is known as single-diskgrain-drills.

As heretofore constructed there has been considerable difficulty withdisk grain-drills clogging with mud, particularly when used in what isknown as gumbo soil, a very sticky soil common in the Northwest.

The objects of this invention are, first, to provide a disk grain-drillstructure in which the liability to clog in adhesive soils is overcome;second, to provide an improved scraper means therefor.

Minor objects and objects relating to details of construction willdefinitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

Portions of a disk grain-drill showing my invention are clearlyillustrated in the accompanying drawings, forming a part of thisspecification, in which- Figure 1 is a side elevation view of a pair ofdisks as arranged in a grain-drill involving my improvement. Fig. 2 is adetail sectional view of the scraper-attaching means enlarged, taken ona line 22 of Fig. 1. Fig. 3 is a detail plan view of a series of four ofthe disks with their draw-bars, showing the relation of the parts; andFig. A is a reverse elevation view of one of the disk structuresappearing in Fig. 1, showing the convex side of a disk and its scraper.

In the drawings-similar letters of reference refer to similar partsthroughout the several views.

Referring to the lettered parts of the drawings, the frame A of agrain-drill of usual construction is carried by suitable carryingwheels.(Not here illustrated.) The drawbars B B, preferably of pipe, extendfrom the frame A, to which they are pivotally attached, rearwardly, anda disk furrow-opener structure is secured on the rear end of each one.These disk furrow-opener structures in each instance consist of a bootC, provided with a bracket C, to which the pipe drawbar B is connectedand which extends downwardly and is connected to the axle at the centerof the disk. A scraper K is placed on Elie convex side of each disk, asindicated in The draw-bars of diiferent lengths and alternating witheach other are of such length that the front edge of the rear disk willbe about opposite the center of the forward disks. The mud adheresprincipally to the concave sides of these disks. The rear disks areprovided with a scraper consisting of a spring-shank E and a suitablescraper-blade E, with its edge transverse to the side of the shank. Theupper end of the shank is curved and fits into a curved seat in thebracket C. The end of the shank E is perforated with an elongated holea. A block E" corresponds to the curved seat and is retained in place bya bolt 0 therethrough, and the spring-scraper is consequently adjustablefreely and readily, as will be seen from an inspection of Fig. 2. Thisscraper engages the disk in a horizontal line back of the center of thedisk. An exactly similar scraper is secured to an arm on the shorterdraw-bar and is so located that the edge of the scraper-blade insubstantially vertical position engages the upper part of this forwarddisk at a point substantially above the center, although if the samewere a little in advance or a little to the rear of the center it wouldnot be of any particular moment. However, the farther forward it islocated the more certain it is in its results.

Referring to Fig. 4, an armH connects the lower end of the boot C to theportion of the bracket which supports the bearing at the center of thedisk. On this arm H is a scrapingblade K, having slots K therein, andsuitable bolts L through these slots into the arm H, holding the scraperadjustably, so that it can be nicely adjusted to scrape the mud entirelyfrom the convex surface of the disk. As the pressure of the disk istoward this scraper, naturally the scraper will become worn, and theadjustment enables the user to take up the wear and also insure theclean scraping of the convex face of the disk. It is necessary to keepthe mud removed from this surface, for if the mud is allowed toaccumulate at all thereon in the sticky soils where it is intended touse this drill a bridge of "mud,

so to speak, will form between the convex side of one disk and theconcave side of the ,next adjacent disk, thereby destroying the efthemud scraped from any disk filling the space between it and the nextadjacent disk. By this arrangement, therefore, the clogging by the mudwill be efi'ectively avoided.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a disk grain-drill, the combination of suitable pivoted draw-bars, with concavo-con vex disk furrow-openers thereon, the drawbarsbeing alternately of different lengths; a scraper arranged to the rearof the center of the rear disk and pointing downwardly; a scraperarranged on the upper portion of the forward disk and pointingrearwardly; and an adjustable scraper on the convex side of said disk tothe rear of the center and extending from the center to the peripherythereof, all coacting for the purpose specified.

2. In a disk grain-drill, the combination of suitable pivoted draw-bars,with concavo-convex disk furrow-openers thereon, the drawbars beingalternately of different lengths; a scraper arranged to the rear of thecenter of the rear disk and pointing downwardly; a scraper arranged onthe upper portion of the forward disk and. pointing rearwardly; and ascraper on the convex side of said disk to the rear of the center andextending from the center to the periphery thereof, all coacting for thepurpose specified.

3. In a disk grain-drill, the combination of suitable pivoted draw-bars,with concavo-convex disk furrow-openers thereon, the drawbars beingalternately of different lengths; a scraper arranged to the rear of thecenter of the rear disk and pointing downwardly; and a scraper arrangedon the upper portion of the forward disk and pointing rearwardly, allcoacting for the purpose specified.

A disk grain drill with the alternate draw-bars of difierent lengths forthe diskopeners; a scraper to the rear portion of each rear disk; ascraper toward the front portion of each forward disk; and an adjustablescraper on the convex side of said disk to the rear of the center andextending from the center to the periphery thereof, all coacting for thepurpose specified.

5. A disk grain drill with the alternate draw-bars of different lengthsfor the diskopeners; a scraper to the rear portion of each rear disk; ascraper toward the front portion of each forward disk; and a scraper onthe convex side of said disk to the rear of the center and extendingfrom the center to the periphery thereof, all coacting for the purposespecified.

6. A disk grain drill with the alternate draw-bars of different lengthsfor the diskopeners; a scraper to the rear portion of each rear disk;and a scraper toward the front portion of each forward disk, for thepurpose specified.

7 In a disk grain-drill, the combination of disk furrow-openers arrangedalternately one forward and one back; a scraper arranged to scrape therear portion of each rear disk to discharge the mud therefrom toward therear of the center thereof; a scraper arranged to scrape each forwarddisk and to discharge the mud therefrom toward the front of the centerthereof, whereby the scrapings from either disk will not be dischargedagainst the next adjacent disk; and an adjustable scraper on the convexside of said disk to the rear of the center and extending from thecenter to the periphery thereof, all coacting for the purpose specified.

8. In a disk grain-drill, the combination of disk furrow-openersarranged alternately one forward and one back; a scraper arranged toscrape the rear portion of each rear disk to discharge the mud therefromtoward the rear of the center thereof; a scraper arranged to scrape eachforward disk and to discharge the mud toward the front of the centerthereof, whereby the scrapings from either disk will not be dischargedagainst the next adjacent disk; and a scraper on the convex side of saiddisk to the rear of the center and extending from the center to theperiphery thereof, all coacting for the purpose specified.

9. In a disk grain-drill, the combination of disk furrow-openersarranged alternately one forward and one back; a scraper arranged toscrape the rear portion of each rear disk to discharge the mud therefromtoward the rear of the center thereof; and a scraper arranged to scrapeeach forward disk and to discharge the mud toward the front of thecenter thereof, whereby the scrapings from either disk will not bedischarged against the next adjacent disk, as specified.

10. In a disk grain-drill, the combination with disk furrow-openersarranged alternately one forward and one back, of a scraper arranged toscrape the rear disk and discharge the mud therefrom to the rear of theforward disk; a scraper arranged to scrape the forward disk anddischarge the mud therefrom in front of the adjacent rear disk; and anadjustable scraper on the convex side of said disk to the rear of thecenter and extending from the center to the periphery thereof, allcoacting for the purpose specified.

11. In a disk grain-drill, the combination with disk furrow-openersarranged alternately one forward and one back, of a scraper arranged toscrape the rear disk and discharge the mud therefrom to the rear of theforward disk; a scraper arranged to scrape the forward disk anddischarge the mud therefrom in front of the adjacent rear disk; and ascraper on the convex side of said disk to the rear of the center andextending from the center to the periphery thereof, all coacting for thepurpose specified.

12. In a disk grain-drill, the combination with disk furrow-openersarranged alternately one forward and one back, of a scraper arranged toscrape the rear disk and discharge the mud therefrom to the rear of theforward disk; and a scraper arranged to scrape the forward disk anddischarge the mud therefrom in front of the adjacent rear disk, coactingas specified.

13. In a disk grain-drill, the combination of a concavo-convex disk; abracket to which the draw-bar is attached in carrying a boot at therear, a portion of which extends to the center of the disk and thence tothe lower end of the boot; and an adjustable scraper provided withtransverse slots, secured to the said bracket and extending fromsubstantially the center of the disk rearwardly to its periphery, asspecified.

In witness whereof I have hereunto set my hand and seal in the presenceof two witnesses.

CHARLES L. FOWLE.

Witnesses:

W. F. HOYT, E. S. MoMAsTER.

